18403700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{431}}^1$

素因数の和:513

約数の個数: 72

約数和(自身を含む): 46497024

約数和(自身を除く): 28093324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 61, 70, 100, 122, 140, 175, 244, 305, 350, 427, 431, 610, 700, 854, 862, 1220, 1525, 1708, 1724, 2135, 2155, 3017, 3050, 4270, 4310, 6034, 6100, 8540, 8620, 10675, 10775, 12068, 15085, 21350, 21550, 26291, 30170, 42700, 43100, 52582, 60340, 75425, 105164, 131455, 150850, 184037, 262910, 301700, 368074, 525820, 657275, 736148, 920185, 1314550, 1840370, 2629100, 3680740, 4600925, 9201850, 18403700]

約数ペア:

[(1, 18403700), (2, 9201850), (4, 4600925), (5, 3680740), (7, 2629100), (10, 1840370), (14, 1314550), (20, 920185), (25, 736148), (28, 657275), (35, 525820), (50, 368074), (61, 301700), (70, 262910), (100, 184037), (122, 150850), (140, 131455), (175, 105164), (244, 75425), (305, 60340), (350, 52582), (427, 43100), (431, 42700), (610, 30170), (700, 26291), (854, 21550), (862, 21350), (1220, 15085), (1525, 12068), (1708, 10775), (1724, 10675), (2135, 8620), (2155, 8540), (3017, 6100), (3050, 6034), (4270, 4310)]